<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"> 
<title>)</title> 
<script src="http://cdn.static.runoob.com/libs/jquery/2.0.0/jquery.min.js">
</script>
<script src="select.js"></script>

</head>

<body>
    <p>p1</p>
    <p id="pid">p2</p>
     <button>click</button>
</body>
</html>